|
|||||||||||||||
|
Board Talk
At Board Talk, the Assembly Brothers cut through the marketing hype, the platitudes and incompetent un-scientific baloney with a search for the truth.
This episode features:
Phil Zarrow, ITM ConsultingPhil has been involved with hybrid and PCB assembly for more than 30 years including equipment design for pcb fab and assembly. 
Jim Hall, ITM ConsultingJim has a wealth of knowledge in soldering and thermal technology, equipment and process basics and is a pioneer in the science of reflow technology. |
Can You Mix Leaded and Lead Free?
|
Related Programs
All Related |
|||||||||||||
|
Comments and Questions What are the risks of mixing SnPb and Pb-free components on a board that does not have to be RoHS-compliant? What are some of the common pitfalls that one should be aware of? A.K. Hello R.L., Here is the exemption in ROHS. *23. Lead in **finishes of fine pitch components other than connectors with **a pitch of 0.65 mm or less** with NiFe lead frames and lead in finishes of **fine pitch components other than connectors with a pitch of 0.65 mm or **less with copper lead frames.[2010] * There is no need for component manufacturers to follow this exemption. It is my observation that most suppliers plate all their leads with Matte Tin regardless of the pitch. You should read the RoHS document, it isn't that long. Regards, Jim Hall ITM Consulting Recently you commented on using leaded and lead free components on the same assembly. You said that fine pitch parts, those whose pitch is .65 mm or less, were exempt from ROHS requirements as far as the plating on the leads. Please tell me where I can find this exemption written. R.L. Do you have results of mixing lead and lead-free components, so that I can keep the company I work for from doing this. A.C. |
|||||||||||||||
| |||||||||||||||
